HCH I-Specific Discussions Model Years 20032005

Failed IMA

Old 06-26-2006, 11:29 AM
Thread Starter
Join Date: Jun 2006
Posts: 1
Default Failed IMA

I have a 2003 Honda Civic Hybrid 5-speed and have driven 90,000 miles. It has been perfect.

At about 80,000 miles the auto-shut-off became irregular and my mileage dropped about 10% (from 48 mpg to 44 mpg).

I asked about these symptoms at the Honda dealer service department each time I took the car in for an oil change (every 3,000 miles) but the answer was always "everything checks out." This service department is VERY good, fair prices and I trust them. They just couldn't find the problem.

Last week the IMA light came on and I took the car to Honda. The batteries have failed and probably the computer. At least $4,000.

Be sure and buy the extended warrenty for 100,000 miles. I didn't buy it and now feel somewhat sick.

Old 06-26-2006, 11:47 AM
clyde2575's Avatar
Pretty Darn Active Enthusiast
Join Date: Mar 2006
Location: Phoenix, AZ
Posts: 255
Default Re: Failed IMA

That really sucks, I am sorry to hear it.

I had bought an extended warranty from the dealer on my '04 and come to find out 2 years later, it did not even cover the IMA.

This time I am getting the Honda Care Warranty for my '06.
Old 06-26-2006, 11:48 AM
cbxtc6's Avatar
Active Enthusiast
Join Date: Nov 2004
Location: Northern Illinois
Posts: 121
Default Re: Failed IMA

Dang. First one I've heard of. Any other signs it was coming, larry?
I've got over 90,000 miles on mine...
Old 06-26-2006, 02:11 PM
ralph_dog's Avatar
World's First Hybrid
Join Date: Jul 2005
Location: Quincy MA
Posts: 600
Default Re: Failed IMA

Also, depending on what state you live in, I believe the battery is covered to 100K.
Old 06-26-2006, 02:25 PM
bigbearballs's Avatar
Pretty Darn Active Enthusiast
Join Date: Mar 2005
Location: Austin, TX
Posts: 284
Default Re: Failed IMA

How much?
Old 06-26-2006, 03:07 PM
Join Date: Dec 2004
Location: Leominster, MA
Posts: 2,161
Default Re: Failed IMA

Talk to the regonal honda rep. I have never heard anyone paying more than a few hundred to replace the ima. Honda has a reputation and wants the ima to last the life of the car. If it gets out that people are paying $4000+ then people will stop buying ima hybrids.
Old 06-26-2006, 05:11 PM
Wannabe Hypermiler
Join Date: Apr 2005
Location: Orange County, CA
Posts: 174
Default Re: Failed IMA

Larry - Is your HCH PZEV rated (I'm not sure if PZEV rated HCHs were even made in 2003)? If so, you should be covered under this warranty:


Good luck, let us know how it goes.
Old 07-06-2006, 06:57 PM
AshenGrey's Avatar
Hybrid True Believer
Join Date: Aug 2005
Location: Baltimore, MD
Posts: 881
Default Re: Failed IMA

On my car, there was an IMA issue once. The IMA light came on, the autostop was disabled, and the car lost about a thirt of its "get up and go". Fortunately, it turned out to be just a software glitch that was resolved in just 30 minutes at the dealer.
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